http://www.ebaystores.com/thetoppsvault
Broadly speaking, the Topps images originated at one time or another at the Topps Vault, which has an eBay store. Others on this board will have better information I on the indexing of images released over the course of the years.
Lewis and Twitchell from the 79 Ms are images many of us are looking for - whomever eventually finds them will be a hero.
Welcome to the site!
Incidentally - has anyone else experienced recent issues when searching for stores on eBay? I routinely would search for the TV, Kyles Sportscards and others, and now my searches come up empty, even though the stores are still there.